That's how Comcast works here in western Washington.
If you have non-internet service from them (such as TV, phone, or home security) there are plenty of fees on your bill which makes it more than the advertised price of your package, but if you just have internet the bill matches the advertised price.
> if you just have internet the bill matches the advertised price.
Until your fixed-rate introductory period ends. After that, watch the price creep up month by month. I've even seen very low-speed service become more pricey than high-speed service (possibly because it's no longer being advertised, so the rate doesn't have to look good).
Source: experience with a non-Comcast cable provider.
If you are on a contract then when the contract ends your fixed rate will jump from the contract fixed rate to the advertised fixed rate for month to month service.
If you are not on a contract internet is fixed rate at the advertised plan rate.
For example if I go to their site and pretend do be someone moving to my area and look at their plans for my neighborhood my current plan without a 2 year contract is $73/month, or $63/month if you go paperless and use use autopay. That's the same price I am paying as a long time customer on that plan.
With a 2 year contract it is $45/month or $35/month if you go paperless and use autopay for years 1 and 2, and then goes to up to the prices from the previous paragraph.
It really is that simple. Plan price, minus $10/month for paperless and autopay, minus promotional discount if on a contract.
When you add TV or voice then you get things that won't necessarily be fixed rate. There's a broadcast TV fee and if you TV package includes sports channels a regional sports fee. If you have voice then there are state fees. There are also state taxes on TV and voice.
Yup, I've seen this myself. My introductory plan at 69.99/mo (or 79 I can't recall) was good for the first 6 months or maybe a year, and then it steadily crept up in $10 increments every quarter or so for the next 4 years I had their service.
To be fair, the plan also went from 200 megs to 1 gig over that timeframe in similar incremental increases, so that was kinda nice.
If you have non-internet service from them (such as TV, phone, or home security) there are plenty of fees on your bill which makes it more than the advertised price of your package, but if you just have internet the bill matches the advertised price.